Sheet metal brake help.
I'm in the middle of designing/building a small sheet metal brake. I
got everything figured out except 2 things/// 1. From the edge og the bas how far back should the clamp be to leave enough bend radius ? - maybe someone has a brake they can measure this difference on. 2. How much clearance is there between the bending edage and the piece being rotated to bend the metal ?? Thanks Mike |
Sheet metal brake help.
Hi Mike,
The Grizzly website includes pdf manuals for their sheet metal brakes, including the pan and box brakes. Take a look at their G0578 40" model. In the drawing on page 16, the forward edge (point) of the fingers is vertically above the edge of the base, so no clearance has to be allowed here - it's all taken care of by making the bending leaf adjustable. The G0578 manual on page 16 states that this "setback distance is adjusted to at least 1.5 to 2 times the thickness of the workpiece, and thicker or tempered workpieces will need a larger setback." Hope this helps, Ian |
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